if (!Array.prototype.forEach) {

    Array.prototype.forEach = function forEach(callback, thisArg) {

        var T, k;

        if (this == null) {
            throw new TypeError("this is null or not defined");
        }
        var O = Object(this);
        var len = O.length >>> 0;
        if (typeof callback !== "function") {
            throw new TypeError(callback + " is not a function");
        }
        if (arguments.length > 1) {
            T = thisArg;
        }
        k = 0;

        while (k < len) {

            var kValue;
            if (k in O) {

                kValue = O[k];
                callback.call(T, kValue, k, O);
            }
            k++;
        }
    };
}
if (!Array.prototype.map) {
    Array.prototype.map = function (callback, thisArg) {

        var T, A, k;

        if (this == null) {
            throw new TypeError(" this is null or not defined");
        }

        // 1. Let O be the result of calling ToObject passing the |this| value as the argument.
        var O = Object(this);

        // 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
        // 3. Let len be ToUint32(lenValue).
        var len = O.length >>> 0;

        // 4. If IsCallable(callback) is false, throw a TypeError exception.
        // See: http://es5.github.com/#x9.11
        if (typeof callback !== "function") {
            throw new TypeError(callback + " is not a function");
        }

        // 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
        if (thisArg) {
            T = thisArg;
        }

        // 6. Let A be a new array created as if by the expression new Array(len) where Array is
        // the standard built-in constructor with that name and len is the value of len.
        A = new Array(len);

        // 7. Let k be 0
        k = 0;

        // 8. Repeat, while k < len
        while (k < len) {

            var kValue, mappedValue;

            // a. Let Pk be ToString(k).
            //   This is implicit for LHS operands of the in operator
            // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
            //   This step can be combined with c
            // c. If kPresent is true, then
            if (k in O) {

                // i. Let kValue be the result of calling the Get internal method of O with argument Pk.
                kValue = O[k];

                // ii. Let mappedValue be the result of calling the Call internal method of callback
                // with T as the this value and argument list containing kValue, k, and O.
                mappedValue = callback.call(T, kValue, k, O);

                // iii. Call the DefineOwnProperty internal method of A with arguments
                // Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true},
                // and false.

                // In browsers that support Object.defineProperty, use the following:
                // Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true });

                // For best browser support, use the following:
                A[k] = mappedValue;
            }
            // d. Increase k by 1.
            k++;
        }

        // 9. return A
        return A;
    };
}
var DONT_ENUM = "propertyIsEnumerable,isPrototypeOf,hasOwnProperty,toLocaleString,toString,valueOf,constructor".split(","),
    hasOwn = ({}).hasOwnProperty;
for (var i in {
    toString: 1
}) {
    DONT_ENUM = false;
}
Object.keys = Object.keys || function (obj) {//ecma262v5 15.2.3.14
        var result = [];
        for (var key in obj) if (hasOwn.call(obj, key)) {
            result.push(key);
        }
        if (DONT_ENUM && obj) {
            for (var i = 0; key = DONT_ENUM[i++];) {
                if (hasOwn.call(obj, key)) {
                    result.push(key);
                }
            }
        }
        return result;
    };
String.prototype.trim = function () {
    return this.replace(/(^\s*)|(\s*$)/g, "");
};
